Split up extensions storage API implementations for sync and local storage.

chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc

Index: chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc
diff --git a/chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc b/chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc
deleted file mode 100644
index 9ff1175bc728be18c84db4c226feba7720610e0c..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.cc
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/extensions/api/storage/sync_or_local_value_store_cache.h"
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/files/file_path.h"
-#include "base/sequenced_task_runner.h"
-#include "chrome/browser/extensions/api/storage/local_storage_backend.h"
-#include "chrome/browser/extensions/api/storage/settings_frontend.h"
-#include "chrome/browser/extensions/api/storage/settings_storage_quota_enforcer.h"
-#include "chrome/browser/extensions/api/storage/sync_storage_backend.h"
-#include "chrome/browser/extensions/api/storage/weak_unlimited_settings_storage.h"
-#include "chrome/browser/sync/glue/sync_start_util.h"
-#include "content/public/browser/browser_thread.h"
-#include "extensions/common/constants.h"
-#include "extensions/common/extension.h"
-#include "extensions/common/permissions/api_permission.h"
-
-using content::BrowserThread;
-
-namespace extensions {
-
-SyncOrLocalValueStoreCache::SyncOrLocalValueStoreCache(
-    settings_namespace::Namespace settings_namespace,
-    const scoped_refptr<SettingsStorageFactory>& factory,
-    const SettingsStorageQuotaEnforcer::Limits& quota,
-    const scoped_refptr<SettingsObserverList>& observers,
-    const base::FilePath& profile_path)
-    : settings_namespace_(settings_namespace), initialized_(false) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK(settings_namespace_ == settings_namespace::LOCAL ||
-         settings_namespace_ == settings_namespace::SYNC);
-
-  // This post is safe since the destructor can only be invoked from the
-  // same message loop, and any potential post of a deletion task must come
-  // after the constructor returns.
-  BrowserThread::PostTask(
-      BrowserThread::FILE, FROM_HERE,
-      base::Bind(&SyncOrLocalValueStoreCache::InitOnFileThread,
-                 base::Unretained(this),
-                 factory, quota, observers, profile_path));
-}
-
-SyncOrLocalValueStoreCache::~SyncOrLocalValueStoreCache() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-}
-
-syncer::SyncableService* SyncOrLocalValueStoreCache::GetSyncableService(
-    syncer::ModelType type) const {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(initialized_);
-  switch (type) {
-    case syncer::APP_SETTINGS:
-      return app_backend_->GetAsSyncableService();
-    case syncer::EXTENSION_SETTINGS:
-      return extension_backend_->GetAsSyncableService();
-    default:
-      NOTREACHED();
-      return NULL;
-  }
-}
-
-void SyncOrLocalValueStoreCache::RunWithValueStoreForExtension(
-    const StorageCallback& callback,
-    scoped_refptr<const Extension> extension) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(initialized_);
-
-  SettingsBackend* backend =
-      extension->is_app() ? app_backend_.get() : extension_backend_.get();
-  ValueStore* storage = backend->GetStorage(extension->id());
-
-  // A neat way to implement unlimited storage; if the extension has the
-  // unlimited storage permission, force through all calls to Set() (in the
-  // same way that writes from sync ignore quota).
-  // But only if it's local storage (bad stuff would happen if sync'ed
-  // storage is allowed to be unlimited).
-  bool is_unlimited =
-      settings_namespace_ == settings_namespace::LOCAL &&
-      extension->HasAPIPermission(APIPermission::kUnlimitedStorage);
-
-  if (is_unlimited) {
-    WeakUnlimitedSettingsStorage unlimited_storage(storage);
-    callback.Run(&unlimited_storage);
-  } else {
-    callback.Run(storage);
-  }
-}
-
-void SyncOrLocalValueStoreCache::DeleteStorageSoon(
-    const std::string& extension_id) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(initialized_);
-  app_backend_->DeleteStorage(extension_id);
-  extension_backend_->DeleteStorage(extension_id);
-}
-
-void SyncOrLocalValueStoreCache::InitOnFileThread(
-    const scoped_refptr<SettingsStorageFactory>& factory,
-    const SettingsStorageQuotaEnforcer::Limits& quota,
-    const scoped_refptr<SettingsObserverList>& observers,
-    const base::FilePath& profile_path) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(!initialized_);
-  switch (settings_namespace_) {
-    case settings_namespace::LOCAL:
-      app_backend_.reset(new LocalStorageBackend(
-          factory,
-          profile_path.AppendASCII(kLocalAppSettingsDirectoryName),
-          quota));
-      extension_backend_.reset(new LocalStorageBackend(
-          factory,
-          profile_path.AppendASCII(kLocalExtensionSettingsDirectoryName),
-          quota));
-      break;
-    case settings_namespace::SYNC:
-      app_backend_.reset(new SyncStorageBackend(
-          factory,
-          profile_path.AppendASCII(kSyncAppSettingsDirectoryName),
-          quota,
-          observers,
-          syncer::APP_SETTINGS,
-          sync_start_util::GetFlareForSyncableService(profile_path)));
-      extension_backend_.reset(new SyncStorageBackend(
-          factory,
-          profile_path.AppendASCII(kSyncExtensionSettingsDirectoryName),
-          quota,
-          observers,
-          syncer::EXTENSION_SETTINGS,
-          sync_start_util::GetFlareForSyncableService(profile_path)));
-      break;
-    default:
-      NOTREACHED();
-  }
-
-  initialized_ = true;
-}
-
-}  // namespace extensions